判断题（每题 2 分，共 20 分）

状态	递交者	时间	内存	代码	递交时间
AC	chenaijin	-	-	71 Bytes	2026-5-19 12:27:34
AC	wengzhaoyu8	-	-	71 Bytes	2026-5-18 13:34:31
AC	yuziqian	-	-	71 Bytes	2026-5-11 13:13:12
AC	zhengkaiyang666	-	-	71 Bytes	2026-5-11 13:47:26
AC	liusiyu	-	-	71 Bytes	2026-6-4 12:30:26
AC	liuhaoran	-	-	71 Bytes	2026-5-11 13:12:40
AC	cdh	-	-	71 Bytes	2026-6-2 13:54:23